EP2749364A4 - Method and device for confirming press molded product springback countermeasure effect - Google Patents

Method and device for confirming press molded product springback countermeasure effect

Info

Publication number
EP2749364A4
EP2749364A4 EP12825292.1A EP12825292A EP2749364A4 EP 2749364 A4 EP2749364 A4 EP 2749364A4 EP 12825292 A EP12825292 A EP 12825292A EP 2749364 A4 EP2749364 A4 EP 2749364A4
Authority
EP
European Patent Office
Prior art keywords
confirming
molded product
press molded
countermeasure effect
springback countermeasure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12825292.1A
Other languages
German (de)
French (fr)
Other versions
EP2749364A1 (en
EP2749364B1 (en
Inventor
Yuichi Tokita
Akinobu Ishiwatari
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
JFE Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JFE Steel Corp filed Critical JFE Steel Corp
Publication of EP2749364A1 publication Critical patent/EP2749364A1/en
Publication of EP2749364A4 publication Critical patent/EP2749364A4/en
Application granted granted Critical
Publication of EP2749364B1 publication Critical patent/EP2749364B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D15/00—Control of mechanical force or stress; Control of mechanical pressure
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation
    • G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2113/00—Details relating to the application field
    • G06F2113/22—Moulding
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/15—Vehicle, aircraft or watercraft design
EP12825292.1A 2011-08-22 2012-08-17 Method and device for confirming press molded product springback countermeasure effect Not-in-force EP2749364B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011180330A JP5821403B2 (en) 2011-08-22 2011-08-22 Method and apparatus for confirming springback countermeasure effect of press-formed product
PCT/JP2012/005185 WO2013027378A1 (en) 2011-08-22 2012-08-17 Method and device for confirming press molded product springback countermeasure effect

Publications (3)

Publication Number Publication Date
EP2749364A1 EP2749364A1 (en) 2014-07-02
EP2749364A4 true EP2749364A4 (en) 2015-05-27
EP2749364B1 EP2749364B1 (en) 2019-05-01

Family

ID=47746146

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12825292.1A Not-in-force EP2749364B1 (en) 2011-08-22 2012-08-17 Method and device for confirming press molded product springback countermeasure effect

Country Status (6)

Country Link
US (1) US20140172391A1 (en)
EP (1) EP2749364B1 (en)
JP (1) JP5821403B2 (en)
KR (1) KR101588263B1 (en)
CN (1) CN103747890B (en)
WO (1) WO2013027378A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6070066B2 (en) * 2012-10-30 2017-02-01 Ｊｆｅスチール株式会社 Springback amount evaluation method
JP5928488B2 (en) * 2013-08-08 2016-06-01 Ｊｆｅスチール株式会社 Structure analysis method and apparatus
JP6519639B1 (en) * 2017-12-07 2019-05-29 Ｊｆｅスチール株式会社 Springback amount fluctuation factor site identification method
JP6683269B1 (en) 2019-02-01 2020-04-15 Ｊｆｅスチール株式会社 Method for identifying the part that causes the springback variation
JP6852750B2 (en) * 2019-04-25 2021-03-31 Ｊｆｅスチール株式会社 Springback amount Dissociation factor Part identification method and device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007229724A (en) * 2006-02-27 2007-09-13 Jfe Steel Kk Method of analyzing press forming
EP1908539A1 (en) * 2005-06-30 2008-04-09 Nippon Steel Corporation Method and device for designing member, computer program, and computer-readable recording medium
JP2008087035A (en) * 2006-10-02 2008-04-17 Nippon Steel Corp Method for specifying springback occurrence cause portion, its device and its program
EP2058062A1 (en) * 2006-08-31 2009-05-13 Nippon Steel Corporation Springback occurrence cause identifying method, springback influence degree display method, springback occurrence cause portion identifying method, springback measure position specifying method, their devices, and their programs
EP2062663A1 (en) * 2006-08-28 2009-05-27 Toyota Jidosha Kabushiki Kaisha Shape defect factor identification method, device, and program

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101370603B (en) * 2006-01-13 2011-12-28 新日本制铁株式会社 Press molding equipment and press molding method
JP4344375B2 (en) * 2006-09-29 2009-10-14 新日本製鐵株式会社 Springback occurrence cause identifying method, apparatus thereof, and program thereof
JP4308239B2 (en) * 2006-09-29 2009-08-05 新日本製鐵株式会社 Springback influence display method, apparatus thereof, and program thereof
JP4724626B2 (en) * 2006-08-31 2011-07-13 新日本製鐵株式会社 Springback occurrence cause identifying method, apparatus thereof, and program thereof
JP2008142774A (en) * 2006-11-14 2008-06-26 Jfe Steel Kk Method, system and program for stress-strain relation simulation, and recording medium recording the program
JP4410833B2 (en) * 2007-12-25 2010-02-03 新日本製鐵株式会社 Springback generation cause analysis method, apparatus, program and recording medium
WO2010073756A1 (en) * 2008-12-25 2010-07-01 新日本製鐵株式会社 Springback occurrence cause analyzing method, springback occurrence cause analyzing device, springback occurrence cause analyzing program, and recording medium
TWI438041B (en) * 2008-09-30 2014-05-21 Nippon Steel & Sumitomo Metal Corp Forming simulation method, forming simulation apparatus, forming simuration program and media for storing the program, and forming method using the simulation result
JP5068783B2 (en) * 2009-04-06 2012-11-07 新日本製鐵株式会社 Springback occurrence cause identifying method, apparatus thereof, and program thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1908539A1 (en) * 2005-06-30 2008-04-09 Nippon Steel Corporation Method and device for designing member, computer program, and computer-readable recording medium
JP2007229724A (en) * 2006-02-27 2007-09-13 Jfe Steel Kk Method of analyzing press forming
EP2062663A1 (en) * 2006-08-28 2009-05-27 Toyota Jidosha Kabushiki Kaisha Shape defect factor identification method, device, and program
EP2058062A1 (en) * 2006-08-31 2009-05-13 Nippon Steel Corporation Springback occurrence cause identifying method, springback influence degree display method, springback occurrence cause portion identifying method, springback measure position specifying method, their devices, and their programs
JP2008087035A (en) * 2006-10-02 2008-04-17 Nippon Steel Corp Method for specifying springback occurrence cause portion, its device and its program

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2013027378A1 *

Also Published As

Publication number Publication date
WO2013027378A1 (en) 2013-02-28
KR101588263B1 (en) 2016-01-25
US20140172391A1 (en) 2014-06-19
JP5821403B2 (en) 2015-11-24
JP2013043182A (en) 2013-03-04
KR20140040847A (en) 2014-04-03
EP2749364A1 (en) 2014-07-02
CN103747890A (en) 2014-04-23
CN103747890B (en) 2016-08-17
EP2749364B1 (en) 2019-05-01

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